Release 0.20

Sunday, June 1, 2025

🐛 Bugfix

Test doubles used in subshells

Assertions on spies now work even when the call happens inside a subshell.

Example

function test_spy_in_subshell() {
  spy date

  (
    date
  )

  assert_have_been_called date
}

🔧 New features

Interpolating arguments in test names

Data providers can now interpolate their arguments directly into the test name. Combine it with the new @ prefix to improve readability.

example_test.sh

# @data_provider fizz_numbers
function test_returns_fizz_when_multiple_of_::1::_like_::2::_given() {
  # ...
}

function fizz_numbers() {
  echo 3 4
  echo 3 6
}

Output

Running example_test.sh
✓ Passed: Returns fizz when multiple of '3' like '4' given
✓ Passed: Returns fizz when multiple of '3' like '6' given

New assertions for test doubles

You can ensure that a spy was not executed using assert_not_called and check arguments for specific invocations with an optional index in assert_have_been_called_with.

Example

function test_success() {
  spy ps

  ps foo
  ps bar

  assert_have_been_called_with "foo" ps 1
  assert_have_been_called_with "bar" ps 2
  assert_not_called ls
}

Snapshot comparison ignoring colors

assert_match_snapshot_ignore_colors allows validating colored output without caring about ANSI codes.

Example

function test_success() {
  assert_match_snapshot_ignore_colors "$(printf '\e[31mHello\e[0m World!')"
}

Parallel tests on Windows

Parallel execution is now enabled on Windows, greatly reducing running time for large suites.

🌾 Miscellaneous

• Deprecate # data_provider in favor of # @data_provider
• Improve find_total_tests and runner::parse_result_sync performance

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See the full changelog in GitHub